EP 3520772 B1 20231220 - COSMETIC RAW MATERIAL USING CORE-CORONA TYPE MICROPARTICLES AND OIL-IN-WATER TYPE EMULSION COSMETIC
Title (en)
COSMETIC RAW MATERIAL USING CORE-CORONA TYPE MICROPARTICLES AND OIL-IN-WATER TYPE EMULSION COSMETIC
Title (de)
KOSMETISCHES ROHMATERIAL MIT VERWENDUNG VON CORE-CORONA-MIKROPARTIKELN UND ÖL-IN-WASSER-EMULSION-KOSMETIK
Title (fr)
MATIÈRE PREMIÈRE COSMÉTIQUE UTILISANT DES MICROPARTICULES DE TYPE NOYAU-COURONNE ET UN PRODUIT COSMÉTIQUE EN ÉMULSION DE TYPE HUILE DANS L'EAU
Publication
Application
Priority
- JP 2016188437 A 20160927
- JP 2017032926 W 20170912
Abstract (en)
[origin: EP3520772A1] To provide an emulsifier comprised of core-corona type microparticles that emulsification capability thereof is not affected by the crosslinking level and an oil-in-water emulsified cosmetic emulsified by the afore-mentioned emulsifier.A cosmetic raw material comprising:a core-corona type microparticles that is obtained by radical polymerization of a polyethylene oxide macromonomer represented by a chemical formula (1), and at least one hydrophobic monomer selected from a group of an acrylate derivative monomer represented by a chemical formula (2) and an acrylamide derivative monomer represented by a chemical formula (3) under the following conditions (A) to (D);(A) a molar ratio expressed by a feed molar amount of the polyethylene oxide macromonomer/a feed molar amount of (the acrylate derivative monomer and/or the acrylamide derivative monomer) is 1:10 to 1:250;(B) the macromonomer represented by the chemical formula (1) is at least one derivative selected from a group consisting of an acrylic acid derivative and a methacrylic acid derivative that have a polyethylene glycol group with 8 to 200 repeating units,the acrylate derivative monomer represented by the following formula (2) is at least one monomer selected from a group consisting of an acrylic acid derivative and a methacrylic acid derivative that have a substituent comprising an alkyl group having 1 to 12 carbon atoms, and the acrylamide derivative monomer represented by the chemical formula (3) is at least one monomer selected from a group consisting of an acrylamide derivative and a methacrylamide derivative that have a substituent comprising an alkyl group having 1 to 18 carbon atoms;(C) a polymerization solvent is a mixture of alcohol and water,wherein the alcohol is at least one alcohol selected from a group consisting of ethanol, dipropylene glycol, 1,3-butylene glycol and isoprene glycol; and(D) a solvent composition of the water-alcohol mixed solvent is water:alcohol = 90 to 10:10 to 90 in a mass ratio at 20°C;wherein Ris at least one substitute selected from a group consisting of H and an alkyl group having 1 to 3 carbon atoms, n is a number of 8 to 200, and X is at least one substitute selected from a group consisting of H and CH;wherein Ris at least one substitute selected from a group consisting of H and an alkyl group having 1 to 3 carbon atoms, and Ris a substituent that has an alkyl group having 1 to 12 carbon atoms;wherein Ris at least one substitute selected from a group consisting of H and an alkyl group having 1 to 3 carbon atoms, and both Rand Rare one substitute selected from a group consisting of H and substituents that have an alkyl group having 1 to 18 carbon atoms.
IPC 8 full level
A61K 8/81 (2006.01); A61K 8/02 (2006.01); A61K 8/06 (2006.01); A61Q 1/00 (2006.01); A61Q 17/04 (2006.01); A61Q 19/00 (2006.01); C08F 290/06 (2006.01)
CPC (source: EP KR RU US)
A61K 8/00 (2013.01 - US); A61K 8/0245 (2013.01 - EP KR); A61K 8/06 (2013.01 - RU US); A61K 8/062 (2013.01 - EP KR); A61K 8/068 (2013.01 - US); A61K 8/81 (2013.01 - RU US); A61K 8/8152 (2013.01 - EP KR); A61K 8/8158 (2013.01 - EP); A61K 8/84 (2013.01 - KR); A61K 8/86 (2013.01 - US); A61K 8/91 (2013.01 - US); A61Q 1/00 (2013.01 - EP US); A61Q 5/00 (2013.01 - RU US); A61Q 17/00 (2013.01 - RU); A61Q 17/04 (2013.01 - EP KR US); A61Q 19/00 (2013.01 - EP KR RU US); C08F 220/18 (2013.01 - RU); C08F 220/56 (2013.01 - RU); C08F 290/06 (2013.01 - KR RU US); C08F 290/062 (2013.01 - EP US); A61K 2800/413 (2013.01 - KR)
C-Set (source: EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3520772 A1 20190807; EP 3520772 A4 20200429; EP 3520772 B1 20231220; AU 2017338045 A1 20190418; BR 112019005771 A2 20190611; BR 112019005771 B1 20220816; CN 109715133 A 20190503; CN 109715133 B 20220517; JP 2018052925 A 20180405; JP 6403854 B2 20181010; KR 102439974 B1 20220902; KR 20190060773 A 20190603; RU 2760735 C1 20211130; SG 11201902759S A 20190530; TW 201817799 A 20180516; TW I760367 B 20220411; US 11964043 B2 20240423; US 2019290572 A1 20190926; US 2021330573 A1 20211028; WO 2018061755 A1 20180405
DOCDB simple family (application)
EP 17855712 A 20170912; AU 2017338045 A 20170912; BR 112019005771 A 20170912; CN 201780059745 A 20170912; JP 2017032926 W 20170912; JP 2017175011 A 20170912; KR 20197008879 A 20170912; RU 2019111111 A 20170912; SG 11201902759S A 20170912; TW 106132434 A 20170921; US 201716336398 A 20170912; US 202117362206 A 20210629